This total overhaul of Rome:Total War is based upon the Second World War. It contains historical battle locations on different fronts.
Here is the solution:
"Remove all the triggers for traits in the export_descr_character_traits-file- it will solve the gamebreaking CTD for now.
You will have about ten CTD in a full campaign going on between the year 1942 and 1954. But you can ALWAYS start it up and continue.
Without the triggers removed the mod won't let you continue as the CTD will happen again and again at the very same spot.
This all means that one or more triggers in that file is the cause of the gamebreaking CTD, but we do not know which trigger is the cause just yet- by removing all the triggers (search "triggers" using Notepad++ that you'd need to download from Google) the campaign will be fully playable despite a few annoying CTD where you'd still need to restart the game to continue."